: Use the StandAloneKey.exe tool to retrieve a fresh license through the internet. This tool automatically determines your machine's locking code and saves a new lservrc license file.
If none of the above resolves the issue, the license itself may be invalid, blocked, or incompatible with ETABS 2016. Contact (Computers and Structures, Inc.) with your license number and the exact text of Error 30. If you are using a non-genuine license, note that Error 30 is a common block for cracked versions — in that case, the only reliable solution is to obtain a legitimate license from CSI or an authorized distributor. license not recognized error 30 etabs 2016 new